Cobalt (co) and nickel (ni) have almost identical atomic mass numbers. comparing the typical nickel and cobalt atoms, which statement best describes the atoms?

Asmall metal bar, whose initial temperature was 10° c, is dropped into a large container of boiling water. how long will it take the bar to reach 70° c if it is known that its temperature increases 2° during the first second? (the boiling temperature for water is 100° c. round your answer to one decimal place.) sec how long will it take the bar to reach 98° c? (round your answer to one decimal place.)

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.